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swarm: show each agent's effective model and effort, and where they came from

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Each agent now reports the model and effort it runs on, and where each
comes from (`swarm`, `agent_nix`, `local_file` or `default`), in its
turn-state header on `$SWARM.agent-state.<agent>`: `effort`,
`model_source` and `effort_source` join `model`. The shared
`swarm_queue_client::agent_inference::{Effective, Source}` types spell
those fields for both ends.

The Bus keeps a source next to the model and effort. `Bus::new` takes it
from the local fallback chain (`harness_state::local_model` /
`local_effort`, which now return the source with the value), a `/model`
or `/effort` pick sets `local_file`, and the swarm poller sets `swarm`
or, on a clear, the local chain's source. A swarm value equal to the one
the agent already runs is now applied once, so the source moves to
`swarm` and the header is republished; before, `next()` skipped it as
unchanged.

swarm-controller subscribes to every agent's header with the reader
grant it already holds for the state relay, and keeps the latest
inference fields per agent in memory (`inference::Reported`).
`GET /api/agents/{name}/inference` now answers
`{configured, effective}`, `effective` being `null` until the agent's
first header with these fields since the controller started.
`swarmctl agent inference get` prints both; `set` reads `configured`.

Refs #5034
This commit is contained in:
atlas 2026-10-10 00:00:25 +02:00 • committed by mara
commit d723fac0be
20 changed files with 655 additions and 113 deletions
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6
frontend/packages/swarm-ui/src/pages/agents/useSwarmAgentStateStream.ts
View file

@ -25,6 +25,9 @@ export interface TokenUsage {
cache_creation_input_tokens?: number;
}
// `swarm_queue_client::agent_inference::Source`.
export type InferenceSource = "swarm" | "agent_nix" | "local_file" | "default";
// Mirrors `hive_agent::swarm_agent_state::AgentStateMsg` field-for-field
// — see that struct's own doc comment for why `turn_state_since` (an
// ISO 8601 string here, unlike the per-agent page's unix-seconds
@ -35,6 +38,9 @@ export interface AgentStateHeader {
turn_state_since: string;
agent_state: "up" | "offline" | "paused" | "destroyed";
model: string;
effort: string;
model_source: InferenceSource;
effort_source: InferenceSource;
resolved_model: string | null;
context_window_tokens: number;
ctx_usage: TokenUsage | null;